AIM VACCINE (06660) announced that Ms. Huang Peiqiao has tendered her resignation as a joint company secretary of the Company, effective December 31, 2025. The other joint company secretary, Ms. Liu Ling, has recently received confirmation from The Stock Exchange of Hong Kong Limited that she meets the qualifications stipulated under Rule 3.28 of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited to act as the company secretary of the Company; therefore, no further exemption is required. Following Ms. Huang's resignation, Ms. Liu Ling will continue in her role and serve as the sole company secretary of the Company, effective from December 31, 2025. Consequent to her resignation as a joint company secretary, Ms. Huang has also resigned as an authorized representative of the Company pursuant to Rule 3.05 of the Listing Rules. The Board announced that Ms. Liu Ling has been appointed as an authorized representative to succeed Ms. Huang, effective December 31, 2025. Mr. Zhou Yan, an executive director, will continue to serve as the other authorized representative.